ref: 971f758a8b3fdf0a663a00477d6b3fbd153518bc
parent: 752ce37b01ac904914a9673efbe8219d3a914f3e
author: Lennart Augustsson <lennart@augustsson.net>
date: Fri Nov 22 07:51:17 EST 2024
Make superclass list have 0/1 elements. Expand tupled constraints.